Elements
What is the smallest particle of an element?
Atom
Which term represents the type and number of atoms present in a particular substance?
Chemical Formula
A substance composed of two or more different elements that are chemically bonded is called a:
Compound
The number of protons found in one atom of an element is represented by its:
Atomic Number
Which type of change alters the form or appearance of matter but doesn't turn it into a different substance?
Physical Change
What do we call one or two letters representing a chemical element?
Chemical Symbol
What term refers to the simplest unit of a chemical compound that can exist?
Molecule
Where do chemists organize the elements, with each square containing the chemical symbol?
Periodic Table
Protons and _______ are equal in a neutral atom of an element?
Electrons
A change in matter where one or more new substances form with different properties is called:
Chemical Change
What is a pure substance composed of the same type of atom throughout?
Element
What do we call the 3 in in following Chemical Formula? 3H2O
Coefficient
What is the act of decreasing the concentration of a solution called?
Dilution
Count the atoms in Fe(NO3)3
13
What do we call water that contains one or more dissolved substances homogeneously mixed?
Aqueous Solution
How many elements are suggested to be basic requirements for life?
Six
What do we call the 2 in the following Chemical Formula? Al2(SO4)3
Subscript
The amount of solute dissolved in a given amount of solvent is known as:
Concentration
What does it mean for an atom to be an ion?
It is negatively charged (extra electron)
Which term describes a substance that dissolves other substances?
Solvent
Where do organize elements?
Periodic Table
What are the molecules on the left side of a chemical equation called?
Reactants
What is a chemical?
Matter that contains compounds
Name the three subatomic particles.
Protons, Neutrons, and Electrons
A substance that can be dissolved by a solvent is called a:
Solute